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42648120 = 2334513163
BaseRepresentation
bin1010001010110…
…0001000111000
32222020202020000
42202230020320
541404214440
64122033000
71025334354
oct242541070
988222200
1042648120
112208a189
1212348760
138ab2c98
145942464
153b26730
hex28ac238

42648120 has 80 divisors (see below), whose sum is σ = 143355960. Its totient is φ = 11371968.

The previous prime is 42648107. The next prime is 42648127. The reversal of 42648120 is 2184624.

42648120 is a `hidden beast` number, since 4 + 2 + 648 + 12 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nialpdrome in base 9.

It is a zygodrome in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42648127) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3342 + ... + 9821.

Almost surely, 242648120 is an apocalyptic number.

42648120 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42648120 is an abundant number, since it is smaller than the sum of its proper divisors (100707840).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42648120 is a wasteful number, since it uses less digits than its factorization.

42648120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13186 (or 13173 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 42648120 is about 6530.5528096785. The cubic root of 42648120 is about 349.3815472887.

The spelling of 42648120 in words is "forty-two million, six hundred forty-eight thousand, one hundred twenty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 18 20 24 27 30 36 40 45 54 60 72 81 90 108 120 135 162 180 216 270 324 360 405 540 648 810 1080 1620 3240 13163 26326 39489 52652 65815 78978 105304 118467 131630 157956 197445 236934 263260 315912 355401 394890 473868 526520 592335 710802 789780 947736 1066203 1184670 1421604 1579560 1777005 2132406 2369340 2843208 3554010 4264812 4738680 5331015 7108020 8529624 10662030 14216040 21324060 42648120